Derek Shearer, Professor of Diplomacy at Occidental College and former US ambassador, huffingtonpost.com
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Excerpt:Other non-fiction works of the past year that I've enjoyed and feel are helpful for understanding our jittery world include ... The Cause of All Nations: An International History of the American Civil War, by Don Doyle, a professor of history, on the "public diplomacy" surrounding the Civil War, and how Lincoln's and the Union's actions to combat slavery reverberated around the world. ...